C语言问题Balancing Brackets，秋忙帮。

请问这个应该怎么做？第一张是原题，第二张是机翻，第三张是stack.c，第四张是stack.h。请大lao帮我编程一下，蟹蟹。

#include <stdlib.h>
#include <stdio.h>
#include  "Stack.h"
 
struct stack {
    int items[MAX_SIZE];
    int size;  
};
 
 
Stack *stackCreate(void) {
    Stack *s = malloc(sizeof (struct stack));
    if(s == NULL) {
        fprintf(stderr,"Insufficient Memory\n");
        exit(EXIT_FAILURE);
    }
    s->size = 0;
    return s;
}
 
void stackPush(Stack *s, int item) {
    int index = s->size;
    if(s->size < MAX_SIZE) {
        s->items[index] = item;
        s->size++;
    } else {
        fprintf(stderr,"Stack full\n");
        stackDestroy(s);
        exit(EXIT_FAILURE);
    }
}

#define MAX_SIZE 100
 
typedef struct stack Stack;
 
Stack *stackCreate(void);
void stackPush(Stack *s, int item);
int stackTop(Stack *s);
int stackPop(Stack *s);
int stackSize(Stack *s);
void stackDestroy(Stack *s);